The incident happened near the intersection of Ascot Way and Chesterfield Court about 3:45 p.m. Saturday.
The 59-year-old victim confronted the would-be thief when he saw him walking away with the bike, according to authorities. The two men started to fight, but the would-be robber fled without the bike when a passerby noticed the scuffle.
Police described the suspect as a 6-foot-1, 150-to-180-pound black man, wearing a green or olive-toned jacket and blue jeans.
The man was seen with a 5-foot-9 black woman in her early 20s, wearing a black skirt and shirt, with her hair parted and pulled up in two buns.
The victim refused medical attention.
In other weekend crime news from FCPD’s Reston Station:
- 12100 block of Chancery Station Circle, medication from residence
- 2100 block of Lirio Court, gun from vehicle
- 11900 block of Market Street, clothing from business
- 1600 block of Reston Parkway, purse from vehicle
- 11100 block of South Lakes Drive, liquor from business
- 900 block of Towlston Road, purse from vehicle
- 12000 block of Town Square, bicycles from business
- 1800 block of Wiehle Avenue, bicycle from residence
- 1500 block of Wood Crest Drive, hunting bow from vehicle
- 1500 block of Elk Point Drive, 2008 Honda Accord